Sodium Metabisulfite, Sodium metabisulphite Na2S2SO5
Sodium Metabisulfite, Sodium metabisulphite Na2S2SO5
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Buy sodium metabisulfite
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Sodium metabisulphite
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Sodium metabisulphite Na2S2SO5
Product Information
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CAS RN.: |
7681-57-4 |
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EINECS: |
231-673-0 |
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H.S.CODE: |
2832.1000.00 |
Chemical Analysis
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Component |
Industrial Grade |
Food Grade |
Medicine Grade |
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Appearance |
White or yellowish crystalline powder |
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Assay(Na2S2O5;) |
96.5%min |
97%min |
98%min |
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water insoluble matter |
0.05%max |
0.03%max |
0.02%max |
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Iron content(Fe) |
0.005%max |
0.003%max |
0.002%max |
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Arsenic content(As) |
0.0001%max |
0.0001%max |
0.0001%max |
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Pb |
0.0005%max |
0.0005%max |
0.0003%max |
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Industrial Uses |
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Water Treatment |
1.Eliminating dissolved oxygen in waste water and in pipes; 2.Cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial. 3.Sodium metabisulfite;is used in water treatment plants to remove excess chlorine. |
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Bleaching Agent |
Sodium metabisulfite's;functions as a bleaching agent, which is useful in making paper pulp, cotton and wool. |
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Food Preservative |
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Antimicrobial |
1.Sodium metabisulfite is commonly used as a food preservative for dried foods, as well as fruit concentrate juices. 2.Sodium metabisulfite;acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe. |
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In beer and wine manufacturing,;sodium metabisulfite;is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine. |
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Other Uses |
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Medicinal |
Sodium metabisulfite is an antioxidant additive in inject able medicines and is also used as a reducing agent in pharmaceuticals. |
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Photographic and film industry |
For preparing developer solutions, for acidifying fixing baths (photo grade). |
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Landscape Gardening |
Sodium metabisulfite used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove. |
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Fiber Industry |
In the sulphitisation of tanning extract. |
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Gold mining |
For bleaching ground wood, as an antichlor. |
Transportation Information
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DOT Classification: |
Not a DOT controlled material |
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U.N. |
Not applicable. |
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Packing Group: |
Not applicable. |
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